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-rw-r--r--patches.tizen/0976-thermal-exynos-Support-for-TMU-regulator-defined-at-.patch90
1 files changed, 90 insertions, 0 deletions
diff --git a/patches.tizen/0976-thermal-exynos-Support-for-TMU-regulator-defined-at-.patch b/patches.tizen/0976-thermal-exynos-Support-for-TMU-regulator-defined-at-.patch
new file mode 100644
index 00000000000..ee38375c3ba
--- /dev/null
+++ b/patches.tizen/0976-thermal-exynos-Support-for-TMU-regulator-defined-at-.patch
@@ -0,0 +1,90 @@
+From 6e966de7746e60ef802c190b9b1db3d32b31e6e8 Mon Sep 17 00:00:00 2001
+From: Amit Daniel Kachhap <amit.daniel@samsung.com>
+Date: Mon, 24 Jun 2013 16:20:47 +0530
+Subject: [PATCH 0976/1302] thermal: exynos: Support for TMU regulator defined
+ at device tree
+
+TMU probe function now checks for a device tree defined regulator.
+For compatibility reasons it is allowed to probe driver even without
+this regulator defined.
+
+Acked-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
+Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
+Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
+Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
+Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
+Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
+Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
+---
+ drivers/thermal/samsung/exynos_tmu.c | 23 +++++++++++++++++++++++
+ 1 file changed, 23 insertions(+)
+
+diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
+index a6fc379..ec01dfe 100644
+--- a/drivers/thermal/samsung/exynos_tmu.c
++++ b/drivers/thermal/samsung/exynos_tmu.c
+@@ -29,6 +29,7 @@
+ #include <linux/of_address.h>
+ #include <linux/of_irq.h>
+ #include <linux/platform_device.h>
++#include <linux/regulator/consumer.h>
+
+ #include "exynos_thermal_common.h"
+ #include "exynos_tmu.h"
+@@ -48,6 +49,7 @@
+ * @clk: pointer to the clock structure.
+ * @temp_error1: fused value of the first point trim.
+ * @temp_error2: fused value of the second point trim.
++ * @regulator: pointer to the TMU regulator structure.
+ * @reg_conf: pointer to structure to register with core thermal.
+ */
+ struct exynos_tmu_data {
+@@ -61,6 +63,7 @@ struct exynos_tmu_data {
+ struct mutex lock;
+ struct clk *clk;
+ u8 temp_error1, temp_error2;
++ struct regulator *regulator;
+ struct thermal_sensor_conf *reg_conf;
+ };
+
+@@ -527,10 +530,27 @@ static int exynos_map_dt_data(struct platform_device *pdev)
+ struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+ struct exynos_tmu_platform_data *pdata;
+ struct resource res;
++ int ret;
+
+ if (!data)
+ return -ENODEV;
+
++ /*
++ * Try enabling the regulator if found
++ * TODO: Add regulator as an SOC feature, so that regulator enable
++ * is a compulsory call.
++ */
++ data->regulator = devm_regulator_get(&pdev->dev, "vtmu");
++ if (!IS_ERR(data->regulator)) {
++ ret = regulator_enable(data->regulator);
++ if (ret) {
++ dev_err(&pdev->dev, "failed to enable vtmu\n");
++ return ret;
++ }
++ } else {
++ dev_info(&pdev->dev, "Regulator node (vtmu) not found\n");
++ }
++
+ data->id = of_alias_get_id(pdev->dev.of_node, "tmuctrl");
+ if (data->id < 0)
+ data->id = 0;
+@@ -698,6 +718,9 @@ static int exynos_tmu_remove(struct platform_device *pdev)
+
+ clk_unprepare(data->clk);
+
++ if (!IS_ERR(data->regulator))
++ regulator_disable(data->regulator);
++
+ return 0;
+ }
+
+--
+1.8.3.2
+